Home / 141,499.40-195,268.08-77,835.80

Finding the Fourth Proportional to 141,499.40, 195,268.08 and 77,835.80

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Solution

The fourth proportional to 141,499.40, 195,268.08 and 77,835.80 is: 107,412.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,499.40 : 195,268.08 = 77,835.80 : x
  2. Step 2: Convert to fraction form
    141,499.40/195,268.08 = 77,835.80/x
  3. Step 3: Cross multiply
    141,499.40x = 195,268.08 × 77,835.80
  4. Step 4: Simplify right side
    141,499.40x = 15,198,847,221.26
  5. Step 5: Solve for x
    x = 15,198,847,221.26/141,499.40
  6. Step 6: Final answer
    x = 107,412.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.